4-6 Long Integration Measurements
The two trigger level ranges for Model 2303-PJ are displayed as follows:
5A Range: PULSE TRIG LEVEL
A (5.0) 0.000A
500mA Range: PULSE TRIG LEVEL
mA (500) 0.0000 A
To toggle the range for the trigger level, place the blinking cursor on the “A” at the far right
end of the display, and press the
and key. After keying in the trigger level (in amps), pressing
ENTER updates the displayed range for that trigger level.
Long integration display mode
Long integration measurements are displayed with the long integration display mode
selected. This display mode is selected as follows:
NOTE
If output settings are presently being displayed (as denoted by a blinking digit in the
voltage or current field), keep pressing the SET key until the blinking stops. The
instrument can now display measured readings
.
1. Press the DISPLAY key to access the display menu.
2. Press the
or key until “LONG INTEGRATION” is displayed and press ENTER.
NOTE For details on display modes, see “Display modes” in Section 1.
Long integration measurement procedure
The following steps summarize the procedure to perform long integration current measurements:
1. For Model 2303-PJ, select the desired measurement range (5A or 500mA) from the
CURRENT RANGE item of the menu. For Models 2303 and 2303B, long integration
measurements are automatically performed on the 5A range.
2. From the LONG INTEGRATION item of the menu, set integration time, pulse timeout,
trigger edge and trigger level (if appropriate).
NOTE If you select AUTO TIME to set the integration time, the pulse timeout message
“LONG INT TRIG NOT DETECTED” will occur before the output is turned on (step
3). This message indicates that the integration time has not been updated. To update
the integration time, you will have to again select AUTO TIME after the output is
turned on in step 3.
Setting the trigger level with the output off will also cause the pulse timeout message
to appear. However, the trigger level will be set.
3. Set the output voltage and current limit, and press OPERATE.
4. Press the DISPLAY key and select the LONG INTEGRATION display type.
5. Observe the long integration readings on the display.
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